Home / 5,111.63-7,667.43-1,601.90

Finding the Fourth Proportional to 5,111.63, 7,667.43 and 1,601.90

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Solution

The fourth proportional to 5,111.63, 7,667.43 and 1,601.90 is: 2,402.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.63 : 7,667.43 = 1,601.90 : x
  2. Step 2: Convert to fraction form
    5,111.63/7,667.43 = 1,601.90/x
  3. Step 3: Cross multiply
    5,111.63x = 7,667.43 × 1,601.90
  4. Step 4: Simplify right side
    5,111.63x = 12,282,448.11
  5. Step 5: Solve for x
    x = 12,282,448.11/5,111.63
  6. Step 6: Final answer
    x = 2,402.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.